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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Suspension for xdrive E90 lci Msport?



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      01-20-2016, 11:16 AM   #1
mex2309
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Suspension for xdrive E90 lci Msport?

My thrust arm bushings are shot so I've spent last 2 days and hours getting some knowledge on this side of the forum. This lead me to start reading about suspensions.

So many options but I'm after what most people want: more comfort for rough roads/potholes, keeping same ride height and maybe a little more control.

I'm riding 18" non runflats w/ spacers and I don't want to lower anymore.
These are my findings:
  • I'm leaning towards Bilstein HDs w/ stock springs.
  • KW V1's seem that they run low on the rear?
  • Eibach Pro w/ Koni Yellows...I've read good things but I don't know if I'll be able to achieve stock ride height.
  • Other options?
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      01-20-2016, 12:42 PM   #2
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Replace your whole control arms, cheap to do so when replacing the whole suspension. Go with Koni Yellows and Eibach, it'll lower the car slightly an inch. You'll have great comfort and you won't complain trust me. I live in pothole city so we'll see how my KW V1's hold up when they're installed next week.
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      01-20-2016, 02:28 PM   #3
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How can you tell when you need new control arms?
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      01-20-2016, 04:21 PM   #4
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Quote:
Originally Posted by cgrizzly888 View Post
How can you tell when you need new control arms?
Vibration at 45mph+ on the steering wheel.
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      01-20-2016, 04:23 PM   #5
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Thanks!
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      01-20-2016, 05:45 PM   #6
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I have the same car as you and wanted to achieve the same as you. Last summer I went with Koni Yellows and kept the stock springs. It gave me exactly what I wanted, stock height with improved handling. It's only a bit more bumpy but well worth it. I feel more confidence in the stability of the car. I also added an m3 rear sway and Powerflex rear subframe bushings to top it off. I'm very happy with the new set up.
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      01-21-2016, 09:59 AM   #7
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Quote:
Originally Posted by CantCatchMe View Post
Replace your whole control arms, cheap to do so when replacing the whole suspension. Go with Koni Yellows and Eibach, it'll lower the car slightly an inch. You'll have great comfort and you won't complain trust me. I live in pothole city so we'll see how my KW V1's hold up when they're installed next week.
I was planning on doing the arms instead of just bushings. Seems like xdrive doesn't have a lot of options. I was either gonna go OE or Lemforder.

You have koni yellows and moving to KW V1's?
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      01-21-2016, 11:27 AM   #8
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Quote:
Originally Posted by mex2309 View Post
I was planning on doing the arms instead of just bushings. Seems like xdrive doesn't have a lot of options. I was either gonna go OE or Lemforder.

You have koni yellows and moving to KW V1's?
I bought lemforders. It's the exact same thing as the OE.

I had Koni yellows on my past car. I have KW V1's, but I haven't installed it yet.
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      02-05-2016, 05:40 PM   #9
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I put Koni yellows on with H&Rs last week. love the new set up. No weird rake either like some other folks had reported...
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      02-05-2016, 10:23 PM   #10
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I did the Koni yellow and H&R Sport springs, no weird rake and improved handling. Up next for me is UUC front sway bar to reduce body roll at higher speeds.
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      02-06-2016, 02:20 PM   #11
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Quote:
Originally Posted by Neil07 View Post
I did the Koni yellow and H&R Sport springs, no weird rake and improved handling. Up next for me is UUC front sway bar to reduce body roll at higher speeds.
Same ride height as before? Is the ride comfort much improved? bumps and small potholes less noticeable?
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      02-18-2016, 05:36 PM   #12
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Your springs more or less determine ride height.

OEM xDrive springs should be paired with Bilstein B4 or B6s. B8s are for lowering springs. Make sure you get get the correct version that is valved for your xDrive application.
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      02-18-2016, 07:49 PM   #13
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I'm actually quite surprised so many people here like the stock ride height of the xi. I thought it was way too 4x4 looking. I don't like the slammed look either, but dropping the ride height about an inch and a quarter made a world of difference in the appearance. Not to mention with coilovers, I reduced that whole negative rake look.
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      03-19-2016, 01:51 PM   #14
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Quote:
Originally Posted by CantCatchMe View Post
I bought lemforders. It's the exact same thing as the OE.

I had Koni yellows on my past car. I have KW V1's, but I haven't installed it yet.
Hve you installed it yet hows the v1 ??
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      03-19-2016, 02:01 PM   #15
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Quote:
Originally Posted by Bours View Post
Hve you installed it yet hows the v1 ??
Yes I have. They're good, no complaints.
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      03-19-2016, 04:08 PM   #16
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I used to ride KW V1īs for a season (40k kms) to mixed feelings . Freshly mounted it gave me a lot of smile and joy, but shortly the struts started to deteriorate rapidly (and NOT uniformly) what lead to erratic handling response at turns under brakes.... moreover I realised unacceptable temperature-related changeability in stiffnes (hard as a rock at below zero, while unbearably soft at over +30degC)

So I would strongly discourage you going for V1īs.... sorry for breaking your cloud No. 9....

Got rid of them, replaced with Koni Yellows and HR sport springs. Much better (and uniform) behaviour, smoother, but very firm ride. The only unknown seems to be this combo durability - not more than 20k kms ridden so far.

EDIT: ooops, forgot to mention - e91 xDrive MY2011 m-paket
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Last edited by pavproch; 03-19-2016 at 04:13 PM.
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      03-30-2016, 07:44 PM   #17
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You guys like the koni yellow and hr spring sets up vs the bilstein sport and eibach ?
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